RESEARCH ON THE RISK CONTROL OF SHIELD TUNNELING THROUGH FRACTURED ZONES
The shield tunneling method features fast construction speed and low noise,which is widely used in ur-ban tunnel construction. During shield tunneling construction,it is inevitable to encounter special geological condi-tions such as fractured zones and water rich areas,which pose significant challenges to the safe construction of tun-nels. The project of Qingdao metro shield tunneling is taken as the case to reduce construction risks and improve construction safety astunnels pass through fractured zones. WBS-RBS coupling matrix is used to identify risk sourc-es,which greatly reduces construction risks during tunnel shield tunneling.The paper provides relevant risk control measures for major risk issues during the construction process,ensuring safe construction of the project,and has cer-tain guiding significance for similar projects.
fracture zoneshield constructionWBS-RBSrisk control
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